arguably some of those moments like lloyd bentsen and dan quayle didn't change anything because michael dukakis in the final presidential debate showed sort of a remarkable lack of human affect you might say in response to bernie schultz question. >> that didn't help the game from dukakis' point of view. lloyd bentsen's line was great line. >> well rehearsed. >> well delivered, well rehearsed. what do we remember from 2008? no lines. that was not a game changing debate between senator obama and senator mccain. >> not the way it was during the primary races. one of the things that you learned from that moment with benson and quayle, is they have been watching dan quayle, this young, some would say not fully prepared senator, and not prepared for the national stage, and watching how he kept comparing himself to john f. kennedy to show that kennedy was also young and they were ready to pounce with that. >> these guys have been on both sides known each other, going to be their opponents, reviewing individual yes videotapes, studied about them, forgetting about whether mitt romney has zinger